Which of the following is the cause of the secretory phase of the menstrual cycle?
A) Increased levels of FSH and LH
B) Increased levels of progesterone and decreased levels of estrogen
C) Decreased levels of progesterone and increased levels of estrogen
D) Increased levels of GnRh

Question

Quizplus · Accepted Answer

The secretory phase of the menstrual cycle is primarily caused by increased levels of progesterone, which is secreted by the corpus luteum after ovulation. This hormone prepares the endometrium for potential implantation of an embryo.

Which of the Following Is the Cause of the Secretory